Finding the Third Proportional to 56,785.50 and 124,992

Step by Step Solution

1. Step 1: Write the proportion equation
   56,785.50 : 124,992 = 124,992 : x
2. Step 2: Convert to fraction form
   56,785.50/124,992 = 124,992/x
3. Step 3: Cross multiply
   56,785.50x = 124,992 × 124,992
4. Step 4: Simplify right side
   56,785.50x = 15,623,000,064
5. Step 5: Solve for x
   x = 15,623,000,064/56,785.50
6. Step 6: Final answer
   x = 275,123.05